Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Physics Optics
Which type of mirror is used as reflectors in torches, vehicle headlights to get the powerful beams of light?
1
Convex mirror
2
Plane mirror
3
Concave mirror
4
More than one of the above
5
None of the above